Clamp



March 17, 1925;

R. W. BURNS CLAMP Filed Nov. 2, 1922 &N

INVENTOR. @rgz mol W ATTORNEYS.

Patented Mar. 17, 1925.

UNITED STATES PATENT OFFICE.

RAYMOND W. BURNS, OF POUGHKEEPSIE, NEW YORK, AS SIGNOR T0 JAMES L. TAYLOR MFG. (70., A CORPORATION OF NEW YORK.

CLAMP.

Application filed November 2, 1922.

T 0 all whom it may concern:

Be it known that I, RAYMOND WV. BURNS, a citizen of the United States, and a resident of Poughkeepsie, in the county of Dutchess and State of New York, have invented new and useful Improvements in Clamps, of which the following is a specification.

This invention relates more particularly to an end clamping attachment for clamping means for engaging the side edges of a piece of work, such as a plurality of bar clamps positioned in the same plane, as for example one of the series of clamps which receives a piece of work in a clamp carrier. The invention is illustrated in the drawings as applied to such a series of clamps of a clamp carrier, but I desire it understood that the use of the invention is in no way restricted to a clamp carrier, but it can be applied to clamps positioned by any suitable means other than those of a clamp carrier; nor is the number of clamps material, as the invention could be applied to a single clamp.

The objects of the invention are to enable a piece of work clamped at two opposite edges to be readily clamped at two other opposite edges or in a direction at right angles to the first-mentioned clamp; to thus facilitate framing doors, panels, piano ends and various kinds of other work, end veneering and so forth; to provide such end clamping means as an attachment for a clamp carrier; to mount the end clamps upon the other clamps so that they are always in place ready for use and yet not in the way of other work which requires clamping only at the side edges; to secure a simple and convenient adjustment of the end clamps.

to meet various requirements, and to obtain other. advantages and results as may be brought out by the following description.

Referring to the accompanying drawings, in which like numerals of reference indicate the same parts throughoutthe several views,

Figure 1 is a front view of a series of clamps provided with my improved end clamping attachment;

Figure 2 is a side view of the same;

Figure 3 is an underneath View of a portion of the same;

Figure 4 is a cross-section on line ll of Fig. 3, with the parts restored to the work receiving position shown in Figs." 1 and 2, and

Serial No. 598,469.

Figure 5 is a cross-section on line 55 of Fig. at.

In the specific embodiment of the invention shown in said drawin s, the reference numerals 1, 2, 3 and 4; indlcate bar clamps attached at one end to the cross-rods 5, 6 of a clamp carrier or machine, as by means of feet 7 one on each bar clamp and justable jaws l0 and 11, respectively, adapt-- ed to be clamped together by means of a handled nut 12 at the free end of the clamp, said jaws being mounted upon angle bars 13 and 14 having two of their flanges paral-.

lel and vertical and the other two diverging in the same plane to form a work support. It will be understood that a piece of work such as a door, desk-top or the like, lies flat upon such work supporting surfaces of all the clamps of the series and is engaged at its opposite side edges by the jaws 10 and 11 to clamp the work, 7

Very often it is desired to clamp the other two or end edges of a piece of work at the same time the side edges are being clamped, and it is the purpose of my invention to provide means for doing this. I therefore arrange beneath the side clamps already de scribed the bars 15, 15 of end clamps, which I have shown as two in number, although as many more may be employed as desired, or indeed one could be employed. Each of said bars 15 is provided at one of its ends with an adjustable jaw 16 which projects upward above the plane of the work supporting flanges of the side clamps, so as to.

engage one end edge of the work, and at its other endsaid bar is provided with an adjustable jaw 17 having clamping means, such I as the screw 18, also projecting above the plane of said flanges to engage the other end edge of the work. Obviously when said end clamps are properly supported upon the side clamps, so asto be adjustable with pending applica respect thereto while preserving a right angular relation, the work can be clampedat all four edges.

I prefer to employ such supporting means depending from the end'one's of the'series of side clamps, and furthermore from the for jeach end clamp, the

outer Work supporting flange thereof, so as to be more conveniently accessible. I have shown two such supporting means, although more could be employed, and a description of one will sufiice for. both. Two light channel bars 19, in parallel relation tov each other with their flanges toward each other,

are secured to the underside of a work sup porting flange by any suitable means such as screws 21 extending through the work-sup porting flange and the flanges of the channel bars, as shown in Figure a. The sl de- Ways formed by these channel barsmay be of any desired length, determined by the distance of'adjustment of the end'cla-mps longitudinally of the side clamps. Bolts 22 depend from said channel bars 19, 20, one square head 23 of between the webs each bolt lying in the space offth'e channel'bars 19, 20 so as not to turn, and; the threaded shank '24 depending through the slotybetween the-lower flanges V of said channelbars. Each threaded shank of a .bolt carries at its lower end a clevis having aslot 26 to 'receive the bar 15 of an end clamp and slidably support the same, so

that by this means said bars are supported so. that they .can slide in their clevises 25 for clamping purposes and can be adjusted lengthwise ofthe carrier clamps by sliding .sa'idcle'vises longitudinally of the channel hold them against-moving apart .asthe bolt- 22 is clamped in relation to saidchannel bars;

By the means thus described, end clamps are supported uponthe main or side clamps soas-tobe in place for-use'when desired and yet not'inth'e'way of workwhich does-not require 9 them. Furthermore, such end clamps canbe adjusted long tudinally of the main orside clamps, as desired, and every manipulation ofsai'd end clamps can he per:

formed quickly, conveniently andaccurately;- I11 the detaili-construction of -*sa-id'-end clamps various modifications can be made without departingfrom the spirit and scope Ofth' invention, and Ido notw'v-ish'to be nu: derstood asli'miting myself .in any respect [except as requiredbythe following claims when construed in-the" light of the prior art.

Having thus described the 'inve-ntion, what I cla imi is 1. The combination; with a plurality of bar clalmps ifoi en'gaging -the side edges'o f a piece of work, of an end bar clamp having its bar beneath the bars of said firstnnentioned clamps and supported thereon.

2. The combination with a plurality of 'barclalnps forengaging'the side edges of a piece of work, of-an end bar clamp having its bar beneath the bars of said first-mentioned clamps and slidably supported there- P K *i ll: 3. The combination with a plurality of bar clamps for engaging the sideedges of a piece of work, of an end bar clamp having its bar beneath the bars of said 'i'rst-men tioned clamps and supported thereon so as to slide longitudinally thereof. y

4:. The combination with a plurality of bar clamps for engaging the side edges of a piece of work, of-an end bar clamp having its bar beneath the bars of said first-11 1811 tioned clamps. and supported thereon so as to slide bothlongitudinally and transversely thereof. 1

5.. The combination with a plurality of relatively adjustable bar clamps for engaging the side edges of a piece of work, ofv an end bar clamp having its bar beneath the bars of said first-mentioned clamps and. ad

justably supported thereon.

6. The combination with a plurality of relatively adjustable bar clamps. for engaging the side edges of. a piece of work, of an end" bar clamp having its bar beneath the bars of said first-mentioned clamps and supported thereon so as to adjust longitudinally thereof. V

7. The combination with a plurality of relatively adjustable bar clamps for. engaging the side edges of. a .piece of work, of an end bar clamp having its bar'beneath' the bars of said first-mentioned clamps and supported thereon so asto adjust both longitudinally and transversely thereof.

8. The combination with a plurality of bar clamps in substantially the same plane, of abarclamp in aplane adjacent the plane of said plurality of clamps and transverse to the individual clamps'ofsaid plurality, and a plurality of connecting means each slidable on a clamp of said plurality of bar clamps and engaging the transverse bar clamp.

9. The combination with a plurality of bar clamps in substantially the sameplane, ofa-bar-clam-p'in a -plane-adjacent the plane of said plurality o-fgClamps and-transverse to the individual clamps of said plurality, and a plurality of connecting means each on a clamp of said plurality offbar clamps and slidably engaging the transverse bar clamp.

10. The combination with a plurality of bar clampsoin substantially the same plane,

fit

slidable on a clamp of said plurality of bar clamps and slidably engaging the transverse bar clamp.

11. The combination with a plurality of bar clamps in substantially the same plane and each having a longitudinal slide-way, of a bar clamp in a plane adjacent the plane of said plurality of clamps and transverse to the individual clamps of said plurality, and a sliding member projecting from each of said slideways and engaging said transverse bar clamp.

12. The combination with a plurality of bar clamps in substantially the same plane and each having a longitudinal slideway, of a bar clamp in a plane adjacent the plane of said plurality of clamps and transverse to the individual clamps of said plurality, and a sliding member projecting from each of said slideways and slidably engaging said transverse bar clamp.

13. The combination with a plurality of bar clamps in substantially the same plane and each having a longitudinal slideway, of a bar clamp in a plane adjacent the plane of said plurality of clamps and transverse to the individual clamps of said plurality, a sliding member projecting from each of said slideways and means for releasably locking said sliding member against sliding.

14. The combination with a bar clamp whose bar has an angle bar with one flange adapted to support the Work upon one side of itself, of a bar clamp transverse to said angle bar and in a plane parallel to said work supporting flange, and means on said work-supporting flange at the opposite side from its work supporting side for slidably connecting the bars of said clamps.

15. The combination with a clamp having an angle bar with one flange forming a work-support, of a bar clamp transverse to said angle bar, a longitudinal slideway on said work-supporting flange, and means projecting from said slideway and engaging the bar of the transverse clamp.

16. The combination with a side clamp having an angle bar with one flange forming a work-support, of an end clamp having a bar transverse to said angle bar and spaced from said work-supporting flange by the other flange, a clevis engaging the bar of the end clamp, and means between said clevis and work-supporting flange for slidably connecting them.

17. The combination with a side clamp having an angle bar with one flange forming a work-support, of an end clamp having a bar transverse to said angle bar and spaced from said work-supporting flange by the other flange, a slide vay on said work-supporting flange, a bolt slidable in said slide- Way, and a member on said bolt engaging the bar of the end clamp.

18. The combination with a sideclamp having an angle bar with one flange forming a work-support, of an end clamp having a bar transverse to said angle bar and spaced from said work-supporting flange by the other flange, a slideway on said flange, a bolt slidable in said slide-Way, a member on said bolt engaging the bar of the end clamp, and means for locking said bolt against sliding.

19. The combination with a side clamp having an angle bar with one flange forming a- Work-support, of an end clamp having a bar transverse to said angle bar and spaced from said work-supporting flange by the other flange, a slideway on said flange, a bolt slidable in said slideway, a member on said bolt engaging the bar of the end clamp, and a nut on said bolt for looking it against sliding.

20. The combination with a side clamp having an angle bar with one flange forming a work-support, of an end clamp having a bar transverse to said angle bar and spaced from said work-supporting flange by the other flange, channel irons depending from said work-supporting flange and forming a slideway, a bolt slidable in said slideway, a nut on said bolt for clamp-ing it against sliding, and a member on said bolt engaging the bar of the end clamp.

21. The combination with a side clamp having an angle bar with one flange forming a work-support, of an end clamp having a bar transverse to said angle bar and spaced from said work-supporting flange by the other flange, channel irons depending from said work-supporting flange and forming a slideway, a bolt slidable in said slideway, a nut on said bolt for clamping it against sliding, a binder between said nut and channel irons to prevent spreading of the latter, and a member on said bolt engaging the bar of the end clamp.

22. The combination With a clamp having spaced bars and an adjustable jaw on said bars with a foot extending therebetween and engaging the opposite edges of said bars, of an end clamp transverse to the said first-mentioned clamp at the opposite side of the spaced bars from the adjustable jaws, and means supporting said end clamp on said spaced bars in such spaced relation thereto as to allow said foot to pass.

RAYMOND 1V. BURNS. 

